frequency inverter,frequency converter, ac driver PID control Function,simple PLC,16 steps ... self-adjustment,Slip compensate,PID adjust,Sagged control,Current control,Torque boost,Multifunctions input /output terminal Frequency given wayKeyboard,upper computer,Analog ... -modes and the switch between different modes can be realized.Frequency Range0.00-400.00HzAcc and Dec time0.1-3600.0sDynamic ...